I live in Fort Worth Texas and bought a product in Oct. 1994 that had two Thermoil Batteries in it. It is a 33 ft snowbird. These batteries are still going 7 years later and I think it is time to replace them. I was reading your article on the golf cart batteries. What would you suggest for travel trailers. I am going to order the oil for them because they have been a very good product. Do you think the two six volt batteries is a good choice or just the marine trolling motor batteries.
Thanks,
Garry Willis